Porous planar electrode support in a solid oxide fuel cell

Abstract

Solid oxide fuel cell with a planar support in form of a porous plate structure supporting on one planar surface a layer of electrode active material and with internally elongated gas supply channels formed inside the structure.

What is claimed is:  
     
       1. Solid oxide fuel cell with a planar support in form of a porous metal and/or metal alloy plate structure made from ferritic stainless steel nickel-based alloys and/or high chromium alloys, the plate structure in contact with and directly supporting on one planar surface a layer of anode active material and with internally elongated fuel gas supply channels formed inside the structure. 
     
     
       2. Solid oxide fuel cell of  claim 1 , wherein a planar surface on an opposite side to the surface supporting the anode active material is provided with a dense layer of gas impermeable and electronic conductive material. 
     
     
       3. Solid oxide fuel cell of  claim 2 , wherein the dense layer is a ceramic and/or metallic layer. 
     
     
       4. Solid oxide fuel cell of  claim 1 , wherein the anode layer is active in electrochemical anode reactions and wherein the layer is covered by a dense layer of electrolyte material. 
     
     
       5. Solid oxide fuel cell of  claim 1 , wherein the porous place has a gas impermeable rim. 
     
     
       6. Solid oxide fuel cell of  claim 1 , wherein the porous plate has a rim which supports a dense layer of electrolyte material. 
     
     
       7. Solid oxide fuel cell of  claim 1 , wherein the porous structure is impregnated with a catalyst. 
     
     
       8. Solid oxide fuel cell of  claim 1 , wherein particulate matter containing gas is fed from the fuel gas supply channels for generation of power. 
     
     
       9. Solid oxide fuel cell of  claim 1 , wherein a planar surface on an opposite side to the surface supporting the anode active material is provided with a dense layer of gas impermeable and electronic conductive material. 
     
     
       10. Solid oxide fuel cell of  claim 4 , wherein the dense layer is a ceramic layer. 
     
     
       11. Solid oxide fuel cell of  claim 1 , wherein the anode layer is active in electrochemical anode reactions and wherein the layer is covered by a further dense layer of electrolyte material. 
     
     
       12. Solid oxide fuel cell of  claim 5 , wherein the porous plate is made from ferritic stainless steel, nickel-based alloys and/or high chromium alloys. 
     
     
       13. Solid oxide fuel cell of  claim 6 , wherein the rim of the porous plate is gas impermeable. 
     
     
       14. Solid oxide fuel cell of  claim 7 , wherein the porous plate has a run which supports a dense layer of electrolyte material. 
     
     
       15. Solid oxide fuel cell of  claim 2 , wherein the porous structure is impregnated with a catalyst.